MOBILE DEVICE BASED TEXT DETECTION AND TRACKING

• Main Authors: GERVAUTZ MICHAEL, PAN QI, LAWRENCE ASHOK INIGO ROY, KIM JIEUN, NIELSEN PER O, TALLONNEAU ROMAIN
• Format: Patent
• Language: English
• Published: 02.09.2015
• Subjects: ACOUSTICS; CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; MUSICAL INSTRUMENTS; PHYSICS; SPEECH ANALYSIS OR SYNTHESIS; SPEECH OR AUDIO CODING OR DECODING; SPEECH OR VOICE PROCESSING; SPEECH RECOGNITION

Embodiments disclosed pertain to mobile device based text detection and tracking. In some embodiments, a first reference frame is obtained by performing Optical Character Recognition (OCR) on an image frame captured by a camera to locate and recognize a first text block. A subsequent image frame may be selected from a set of subsequent image frames based on parameters associated with the selected subsequent image and a second reference frame may be obtained by performing OCR on the selected subsequent image frame to recognize a second text block. A geometric relationship between the first and second text blocks is determined based on a position of the first text block in the second reference frame and a pose associated with the second reference frame.